solved by Sadeem Alharbi

bouns.py

@@ -0,0 +1,10 @@
+sentence = "Hello My Name Is Sadeem Alharbi, I Hope To Work In Tuwaiq Academy as a developer"
+word = "Sadeem"
+print ("length of sentence:", len(sentence))
+print ("first index of word:", sentence.find(word))
+print ("word count:", sentence.count(word))
+print ("uppercase:", sentence.upper())
+print ("lowercase:", sentence.lower())
+new_sentense = sentence.replace(word, "developer")
+print("after replacement:", new_sentense )
+print("last character:", sentence[-1])

main.py

@@ -0,0 +1,17 @@
+price = 2.99
+quantity = 3
+taxrate = 7.5
+
+subtotal = price * quantity
+tax = subtotal * (taxrate/100)
+total = subtotal + tax
+
+print(f"price of item: ${price:.2f}")
+print(f"quantity: {quantity}")
+print(f"tax rate: {taxrate}%")
+
+
+print (f"${subtotal:.2f} for the subtotal")
+print(f"${tax:.2f} for the tax")
+print(f"${total:.2f} for the total cost ")
+